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How to count how many visitor's have js enabled and how many does not?

I would like to know how many of the visitors to my site has js enabled
and how many has it turned off.

I haven't found a simple solution searching Google groups so I suggest
the following using php and mysql:

Create a table mc_jscount table in mysql with two fields nonjs (int)
and js (int). Create one record with nonjs and js set to zero.

Put this code at the top of your page:

<?php
// increase nonjs by 1
$sql = 'update mc_jscount set nonjs = nonjs + 1';
$result = mysql_query($sq l);
if (mysql_affected _rows() == -1) {echo 'Unexpected error in the
query:<br/>'; die($sql);}

// check if we are calling this page again ourselves, see below, if we
do $p_count is set
if (isset($p_count ))
{
$sql = 'update mc_jscount set nonjs = nonjs - 2, js = js + 1';
$result = mysql_query($sq l);
if (mysql_affected _rows() == -1) {echo 'Unexpected error in the
query:<br/>'; die($sql);}
}
else
// write the javascript below:
echo '<script language = "JavaScript ">
location.href = "mc_default.php ?count=1";
</script>';
?>

A nonjs visitor to the page will increase the nonjs field by 1 and
since he has not js enabled the script php writes will not run.

A js visitor will have nonjs increased by 1 when he enters the page,
then since this is the first call to the page $p_count is not set so
the javascript will be written and executed. When it executes he
returns to the page so nonjs is increased by 1 again. However now nonjs
is reduced by 2 and js is increased by 1, which takes care of the two
nonjs increases earlier. This time the script is not written so he can
go on and enjoy the page.

If this does not work, according to my testing it does, or is a long
winded way of doing something simple, please post a comment.

Thanks!

Regards,

Jan Nordgreen

Dec 16 '06 #1
18 2458
damezumari wrote:
I would like to know how many of the visitors to my site has js enabled
and how many has it turned off.

You don't have to be so complicated.

<script language='Javas cript" type='text/javascript'>
<!--
var testimg = new Image();
testimg.src='ha sJavascript.gif ';
//-->
</script>
<noscript>
<img src='noJavascri pt.gif' width=1 height=1>
</noscript>

Now just make a transparent 1x1 pixel gif, copy and name it as you see
above, then let your web server log sort it all out :) Let the sucker
run for a month and a quick look at analog or webalizer or whatever
reporting software you use will give you exactly how many people loaded
the hasJavascript.g if and how many people downloaded noJavascript.gi f.
--
http://www.hunlock.com -- Musings in Javascript, CSS.
$FA
Dec 16 '06 #2
pcx99 said the following on 12/16/2006 1:44 AM:
damezumari wrote:
>I would like to know how many of the visitors to my site has js enabled
and how many has it turned off.


You don't have to be so complicated.

<script language='Javas cript" type='text/javascript'>
Don't make it more complicated than it needs to be then. Drop the
deprecated language attribute and the utterly useless HTML comment
delimiters in script blocks.
<!--
var testimg = new Image();
testimg.src='ha sJavascript.gif ';
//-->
</script>
<noscript>
<img src='noJavascri pt.gif' width=1 height=1>
</noscript>

Now just make a transparent 1x1 pixel gif, copy and name it as you see
above, then let your web server log sort it all out :) Let the sucker
run for a month and a quick look at analog or webalizer or whatever
reporting software you use will give you exactly how many people loaded
the hasJavascript.g if and how many people downloaded noJavascript.gi f.
And it won't report how many have JS enabled and images disabled....... .
Or, JS disabled and images disabled. Back to the drawing board.

--
Randy
Chance Favors The Prepared Mind
comp.lang.javas cript FAQ - http://jibbering.com/faq
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/
Dec 16 '06 #3
Randy Webb wrote:
pcx99 said the following on 12/16/2006 1:44 AM:
>damezumari wrote:
>>I would like to know how many of the visitors to my site has js enabled
and how many has it turned off.


You don't have to be so complicated.

<script language='Javas cript" type='text/javascript'>

Don't make it more complicated than it needs to be then. Drop the
deprecated language attribute and the utterly useless HTML comment
delimiters in script blocks.
HTMLKit is quite happy to insert all of this nice stuff for me the
moment I start typing <script. Since it costs nothing* to provide a
little ancient/exotic browser insurance, I indulge it, especially since
it evokes such amusing hostility in some people. I have a REALLY good
laugh whenever the topic is brought up because not even the w3
validators will complain about a language definition in the script tag
or comment "insulators ", and lord knows they complain about everything else.

* Since we're playing lawyercode -- nothing=cost so trivial in terms of
performance/bandwidth as to not being worth notice.
><!--
var testimg = new Image();
testimg.src='ha sJavascript.gif ';
//-->
</script>
<noscript>
<img src='noJavascri pt.gif' width=1 height=1>
</noscript>

Now just make a transparent 1x1 pixel gif, copy and name it as you see
above, then let your web server log sort it all out :) Let the sucker
run for a month and a quick look at analog or webalizer or whatever
reporting software you use will give you exactly how many people
loaded the hasJavascript.g if and how many people downloaded
noJavascript.g if.

And it won't report how many have JS enabled and images disabled....... .
Or, JS disabled and images disabled. Back to the drawing board.
In the upper block you scold me for using 'deprecated language' and in
the second block you scold me for not pandering to 'deprecated surfing' :P

That said, I understand accessibility and some wireless access devices
would have javascript but for whatever reasons (small screen, user
blind, etc) surf without images. If this is a major concern simply
having the javascript redirect the page if only to itself with a
?JS=hasJavascri pt addendum will throw a unique entry into the log file.
Meaning (TotalHits-(TotalhasJavasc ript*2)) = No Javascript. (*2 to
factor out the original unredirected hit). This eliminates searchBots
in the javascript area but you'll still need to filter them out in the
noJavascript area based on the user agents in the web logs something
that would need to be done anyway regardless of the system used since
bots would inordinately skew the "no-js" numbers up (another plus for
using weblog reporting).
The Images worthwhile/Images notworthwhile debate aside, one thing is
certain, using weblogs to track this information is a great deal simpler
than using mysql/php/html for the simple fact that web logs record the
user agent and there are enough weblog analyzers out that will let you
look at your data in countless different ways. The fact that it
requires less coding effort and has much richer reporting options still
makes analyzing the log file one of the simplest and easiest ways to
approach this problem.
--
http://www.hunlock.com -- Musings in Javascript, CSS.
$FA
Dec 16 '06 #4
damezumari wrote:
I would like to know how many of the visitors to my site
has js enabled and how many has it turned off.
So you are not interested in how many never had it to start with?

However, what is the point of knowing that? The availability of
client-side scripting does not guarantee the ability to take any
particular action with client-side scripting. Scriptable browser4s have
always varied considerably in how dynamic that are, and what facilities
they may provide (and which configuration settings may impact the use of
those facilities), and some technologies that depend on scripting also
depend on some other browser features. For example, AJAX requires a
client-side XML HTTP Request object, which may not be implemented in any
specific browser, and in IEs 5-6 requires the scripting of ActiveX that
is "marked safe for scripting" to be enabled in the pertinent security
zone in addition to JScript.
I haven't found a simple solution searching Google groups
You will not find simple solutions to insoluble problems (though you may
find people proposing 'solution').

<snip>
If this does not work, according to my testing it does,
I don't see any measures to take account of remote HTTP caches or
caching firewalls/proxies. But how are you going about testing the
influence of various HTTP caches on your code?
or is a long winded way of doing something simple,
please post a comment.
If someone bookmarks (or worse, links to) the page with the query string
isn't their re-visiting (or others visiting through the link) the page
going to throw the numbers off?

Richard.
Dec 16 '06 #5
pcx99 wrote:
Randy Webb wrote:
>pcx99 said the following on 12/16/2006 1:44 AM:
>>damezumari wrote:
I would like to know how many of the visitors to my site
has js enabled and how many has it turned off.
You don't have to be so complicated.

<script language='Javas cript" type='text/javascript'>

Don't make it more complicated than it needs to be then.
Drop the deprecated language attribute and the utterly
useless HTML comment delimiters in script blocks.

HTMLKit is quite happy to insert all of this nice stuff for me
the moment I start typing <script.
No greater condemnation of HTMLKit or its authors could be presented.
Since it costs nothing* to provide a
little ancient/exotic browser insurance,
What "ancient/exotic browser insurance"? The HTML style comments in
script elements was a workaround for browsers pre-dating Netscape 2 and
IE 3. We are currently at a point where a very good general case can be
made for totally disregarding 4th generation browses. There is also the
question of the possible future use of XHTML, where the contents of
script elements are PCDAT and <!-- .. --style comments may be removed
by XML parsers, removing the script content in the process.
I indulge it, especially since
it evokes such amusing hostility in some people.
Why do you see it as hostility to suggest not using attributes that are
depressed themselves and redundant alongside required attributes is
pointless? Or that actions taken to mitigate the behaviour of browsers
so old that nobody is still using them is better left out?
I have a REALLY good laugh whenever the topic is brought
up because not even the w3 validators will complain about
a language definition in the script tag
It will complain if you attempt to validate against a strict version of
the DTDs.
or comment "insulators ",
An HTML validator will never complain about the contents of CDATA, and
an XHTML validator is very unlikely to complain about the contents of a
comment.
and lord knows they complain
about everything else.
No they don't, they complain about formally invalid documents, as they
are designed to do.
* Since we're playing lawyercode -- nothing=cost so trivial
in terms of performance/bandwidth as to not being worth notice.
It is still a strange attitude that has the editor making code-authoring
decisions.
>><!--
var testimg = new Image();
testimg.src='ha sJavascript.gif ';
There is no public standard that states that script enabled web browsers
will implement a global Image constructor, or that assignments to the -
src - property of such an object will result in an HTTP request being
made. It is certainly the case that even some browsers that support the
object will not make the request (IceBrowser 5 being the first example
that springs to mind).

<snip>
>And it won't report how many have JS enabled and images
disabled...... .. Or, JS disabled and images disabled.
Back to the drawing board.

In the upper block you scold me for using 'deprecated
language' and in the second block you scold me for not
pandering to 'deprecated surfing' :P
What makes taking advantage of the configuration options available on
the very newest browsers "deprecated surfing"? Isn't this really a VKish
'I cannot cope so I will deny the need to cope by deprecating the issue'
attitude?
That said, I understand accessibility and some wireless access
devices would have javascript but for whatever reasons (small
screen, user blind, etc) surf without images.
If this is a major concern simply having the javascript
redirect the page if only to itself with a
?JS=hasJavascri pt addendum will throw a unique entry into
the log file.
Doesn't that mean that the javascript enabled visitors will only ever
get a chance to bookmark the page with the value on the query string,
and so whenever they re-visit the site they will re-enforce the numbers
for javascript enabled visitors, independently of whether thy have
javascript enabled at the time (and never re-issuing the first request)?
If the starting position already demonstrates a propensity for users to
have javascript enabled then you may end up with a self-biasing system,
that swings rapidly to the extreme position.

<snip>
... , one
thing is certain, using weblogs to track this information is
a great deal simpler than using mysql/php/html for the simple
fact that web logs record the user agent and there are enough
weblog analyzers out that will let you look at your data in
countless different ways.
Web logs on a server are only capable of reporting HTTP requests that
get to the server, while it is a necessity of HTTP that servers never be
required to serve all requests directed in their direction. Several
years ago it was already being assented that without the proportion of
HTTP requests that were then being served from HTTP caches on the
network the load would have far exceeded the capacity of the network.
The fact that it requires less coding effort and has much
richer reporting options still makes analyzing the log file
one of the simplest and easiest ways to approach this problem.
Or one of the simplest ways of deluding yourself into believing whatever
you wanted to believe before looking.

Richard.
Dec 16 '06 #6
Hi Richard,

Thank you, and to the others, for answering.

However, what is the point of knowing that?
I am new to web development and in the process of creating a site. I
started out believing that everybody has js enabled. Now that I about
to make it accessible for non-js users as well I got curious to know
for how many people I do this extra work. 3%, 10%?
I don't see any measures to take account of remote HTTP caches or
caching firewalls/proxies. But how are you going about testing the
influence of various HTTP caches on your code?
I don't even know what 'remote HTTP caches' mean so I can't answer.
If someone bookmarks (or worse, links to) the page with the query string
isn't their re-visiting (or others visiting through the link) the page
going to throw the numbers off?
No. I am interested in the proportion of visits who has js enabled, not
the number of visitors.

Regards,

Jan Nordgreen

Dec 16 '06 #7
damezumari wrote:
Thank you, and to the others, for answering.
>However, what is the point of knowing that?

I am new to web development and in the process of creating
a site. I started out believing that everybody has js
enabled. Now that I about to make it accessible for non-js
users as well I got curious to know for how many people I
do this extra work. 3%, 10%?
Right, so what you want to know is not the proportion of visitors who
have javascript enabled vs disabled but rather the proportion of
potential visitors for whom your javascript dependent version of the
site was non-viable as the result of that javascript dependency. While
all users with javascript disabled/unavailable will find a javascript
dependent site non-viable the odds are good that any scripted action
that introduces such a dependency will also render a site non-viable to
the users of script enabled browsers that do not provide the
facilities/features required by the actual scripts. Thus studying the
proportion of users with javascript disabled (even if practical) would
not properly answer your real question.
>I don't see any measures to take account of remote HTTP
caches or caching firewalls/proxies. But how are you going
about testing the influence of various HTTP caches on your
code?

I don't even know what 'remote HTTP caches' mean so I can't
answer.
HTTP caches are the manifestation of on of the potentials in the HTTP
protocol that act to render all server-based statistics gathering
problematic to the point of being mostly meaningless in the area of
deriving generalisations . You have attempted to write a statistics
gathering script without even knowing they exist, let alone what they
may do, how they may do it or what the implications are. You are not
alone in this and the accumulated effect is that almost all statistics
relating to any general aspect of HTTP are utterly bogus. And mostly you
can tell they are bogus by observing that published statistics never
explain the statistics gathering process used, and do not reveal what,
if any, measures have been taken to account for the statistics gathering
issues inherent in HTTP.

You will be hard presses to find anybody who is familiar with HTTP how
will give any credence to any general web-based statistics at all (this
is as opposed to server gathered statistics used for server-specific
tasks such as load balancing and optimisation). On the other hand you
will find plenty of people who pay attention to such statistics, but
will find them as ignorant of HTTP as you currently are.

You should research the subject, it will save you wasting a great deal
of time in worthless pursuits.
>If someone bookmarks (or worse, links to) the page with the
query string isn't their re-visiting (or others visiting
through the link) the page going to throw the numbers off?

No. I am interested in the proportion of visits who has js enabled,
not the number of visitors.
That would not matter. An individual re-visiting your site using a
bookmark that included you redirect query string will still skew the
results and impact the reported proportions as well as the totals.

Richard.
Dec 16 '06 #8
Richard Cornford wrote:
pcx99 wrote:
>HTMLKit is quite happy to insert all of this nice stuff for me
the moment I start typing <script.

No greater condemnation of HTMLKit or its authors could be presented.
Oh I use PSPad and a few other editors as well, but like I say HTML kit
is a bit of a personality test good for endless laughs when its code is
posted on certain discussion boards :)
>Since it costs nothing* to provide a
little ancient/exotic browser insurance,

What "ancient/exotic browser insurance"? The HTML style comments in
script elements was a workaround for browsers pre-dating Netscape 2 and
IE 3. We are currently at a point where a very good general case can be
made for totally disregarding 4th generation browses. There is also the
question of the possible future use of XHTML, where the contents of
script elements are PCDAT and <!-- .. --style comments may be removed
by XML parsers, removing the script content in the process.
Aye. But because of the fact that web pages tend to hang around
forever, these tags you are so obsessive about will never truly go away.
They're not going to be revoked like the analog spectrum to be
re-assigned to something greater and grander. Because it costs nothing
to allow them to remain in the browser's parsers or at least ignored by
the parser, they will remain. They will never be used for something
else, forever a tiny comment in the <scripttag.
>I indulge it, especially since
it evokes such amusing hostility in some people.

Why do you see it as hostility to suggest not using attributes that are
depressed themselves and redundant alongside required attributes is
pointless? Or that actions taken to mitigate the behaviour of browsers
so old that nobody is still using them is better left out?
Because it's anal retentive and the argument is as pointless as the tags
themselves. It costs nothing to leave them in, people can use them
without any ill effects. It won't break the page, it won't break future
pages, it won't break old browsers it won't break new browsers.

Every time the debate is brought up it SCREAMS pompous arrogance because
it is a tangent that has NOTHING at all to do with the original problem
and it doesn't even hinder getting a working answer to the problem save
for the pointless time and effort spent debating the tangent when effort
could be expended solving the original problem.
>I have a REALLY good laugh whenever the topic is brought
up because not even the w3 validators will complain about
a language definition in the script tag

It will complain if you attempt to validate against a strict version of
the DTDs.
>or comment "insulators ",

An HTML validator will never complain about the contents of CDATA, and
an XHTML validator is very unlikely to complain about the contents of a
comment.
Aye, but apparently people do ;) Strict mode catches language=?
That's a new one, but I shouldn't be surprised. I validate loose. It's
harder to code for, more frustrating to write, but in the end a little
more powerful in getting your objectives met with a spot of professional
polish. Yes I know the professional web page has a higher chance of
breaking in the next browser version but professional also means the
resources to fix it when that happens or having the site totally
revamped anyway because there is a re-design schedule.
>and lord knows they complain
about everything else.

No they don't, they complain about formally invalid documents, as they
are designed to do.
Funny how accurate the <script language=""pers onality test is ;)

BTW, you, randy, and the other shaman might as well set up a macro for
your rants because even when I'm using pspad I'm likely as not to drop
in Language <!-- --just for chuckles. Hmmm I better set up a response
macro while I'm here...

<begin macro:P <end macro>

there, that will do it :)
>* Since we're playing lawyercode -- nothing=cost so trivial
in terms of performance/bandwidth as to not being worth notice.

It is still a strange attitude that has the editor making code-authoring
decisions.
No. The editor makes code making suggestions. It's up to me to decide
if I want to be lazy and leave it in, or hit the backspace a few times,
or failing that, go in and customize the package so it doesn't include
comments or language when generating a script block. So far the scales
are deeply tipped toward "status quo" and no amount of rants on CLJ is
going to change that.
>In the upper block you scold me for using 'deprecated
language' and in the second block you scold me for not
pandering to 'deprecated surfing' :P

What makes taking advantage of the configuration options available on
the very newest browsers "deprecated surfing"? Isn't this really a VKish
'I cannot cope so I will deny the need to cope by deprecating the issue'
attitude?
No this is a 'cost benefit analysis' The original problem sought out a
generalized estimate of JS/non-JS surfers. The shaman swooped in and
decided it needed to be a formal scientific survey despite the fact that
there will never be 100% valid results unless each visitor to the web
page is required to set up an account and log in before visiting the
test page, and further that each person that logs in be matched to a
real world identity and that they log in under carefully monitored
network conditions between the client and server.

Since that level of accuracy will not be met we are discussing a
generalized, glorified, hit counter regardless of what you and randy
would like to otherwise believe. And since you're so fond of quoting
history, perhaps you would like to quote the grand and glorious history
images have had in hit counting. I think you'll find that, failing the
resources to do scientific studies of page hits, it's a time honored and
accepted practice of counting pages.
>That said, I understand accessibility and some wireless access
devices would have javascript but for whatever reasons (small
screen, user blind, etc) surf without images.
If this is a major concern simply having the javascript
redirect the page if only to itself with a
?JS=hasJavascr ipt addendum will throw a unique entry into
the log file.

Doesn't that mean that the javascript enabled visitors will only ever
get a chance to bookmark the page with the value on the query string,
and so whenever they re-visit the site they will re-enforce the numbers
for javascript enabled visitors, independently of whether thy have
javascript enabled at the time (and never re-issuing the first request)?
If the starting position already demonstrates a propensity for users to
have javascript enabled then you may end up with a self-biasing system,
that swings rapidly to the extreme position.
Surely, in order to press an attack, you're not blindly overlooking the
fact that referer urls (or lack thereof), history manipulation for the
current url, framesets, and other log analysis can't be used to offset
bookmarks. Or did you truly not consider these tools? Either way, it
doesn't look that great for you over there.
>thing is certain, using weblogs to track this information is
a great deal simpler than using mysql/php/html for the simple
fact that web logs record the user agent and there are enough
weblog analyzers out that will let you look at your data in
countless different ways.

Web logs on a server are only capable of reporting HTTP requests that
get to the server, while it is a necessity of HTTP that servers never be
required to serve all requests directed in their direction. Several
years ago it was already being assented that without the proportion of
HTTP requests that were then being served from HTTP caches on the
network the load would have far exceeded the capacity of the network.
There you go trying to make this into a scientific survey where that was
never a part of the original problem. The fellow wasn't looking for a
dissertation, just a generalized hit counter that separated JS from non JS.
>The fact that it requires less coding effort and has much
richer reporting options still makes analyzing the log file
one of the simplest and easiest ways to approach this problem.

Or one of the simplest ways of deluding yourself into believing whatever
you wanted to believe before looking.
Drumroll please! And the answer is...



Please, do fill in the blank.

--
http://www.hunlock.com -- Musings in Javascript, CSS.
$FA
Dec 17 '06 #9
Hi Richard,

Thank you for your last comment.
You should research the subject, it will save you wasting a great deal
of time in worthless pursuits.
I couldn't agree more! This was my first step in my researching. Thanks
to you and the others who answered I have learnt a lot and am ready for
my second step.

Thanks!

Regards,

Jan Nordgreen

Dec 17 '06 #10

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Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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7387
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
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6198
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
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5666
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
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4198
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

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